We look at the division of 90894472 by 915 
The aim is to understand the frequency of 915 in 90894472.

Step 1:
If we divide 9 by 915, we get 0 and a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 915

Moving on to step 2:
The number 915 fits into 90 0 times, leaving a remainder of 90.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 90, we get 90.
Fetch the next digit (8) from the dividend, attach it to 90 and continue: 908 / 915

Step 3:
When dividing 908 by 915, we get 0 with a remainder of 908.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 908 leaves us with 908.
Take the next digit (9) from the dividend and append it to 908, then repeat: 9089 / 915

Moving on to step 4:
If we divide 9089 by 915, we get 9 and a remainder of 854.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
If we subtract 8235 from 9089, we get 854.
Take the next digit (4) from the dividend and append it to 854, then repeat: 8544 / 915

Advancing to step 5:
915 can be fit into 8544 9 times, resulting in a remainder of 309.
Record the quotient 9 as the next digit in the result. 
Result so far: 99.0
Subtracting 8235 from 8544 leaves us with 309.
Append the next digit (4) from the dividend to 309 and continue with: 3094 / 915

Advancing to step 6:
915 goes into 3094 3 times with a remainder of 349.
Use 3 as the next digit of our solution. 
Result so far: 993.0
Deduct 2745 from 3094 and we're left with 349.
Fetch the next digit (7) from the dividend, attach it to 349 and continue: 3497 / 915

Moving on to step 7:
3497 divided by 915 is 3 with a remainder of 752.
Record the quotient 3 as the next digit in the result. 
Result so far: 9933.0
The remainder is 752 after subtracting 2745 from 3497.
Bring next digit (2) of the dividend behind the 752 and repeat the process: 7522 / 915

Let's proceed to step 8:
915 can be fit into 7522 8 times, resulting in a remainder of 202.
Put 8 as the next digit of the answer. 
Result so far: 99338.0
If we take 7320 away from 7522, we end up with 202.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

Going ahead to step 9:
915 goes into 2020 2 times with a remainder of 190.
Write down 2 as next digit of the result. 
Result so far: 99338.2
If we subtract 1830 from 2020, we get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Moving on to step 10:
The number 915 fits into 1900 2 times, leaving a remainder of 70.
The number 2 becomes the next digit in our result. 
Result so far: 99338.22
Deduct 1830 from 1900 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

After the division, we end up with 99338.22 and a remainder of 0.07.